Scale 1:100,000 Relief shown by contours and hachures. Depths shown by soundings. Oriented with north toward upper left. In lower left margin: Andrew B. Graham Co., lithographers, Washington, D.C. In lower right margin: Oliver B. Harden del. "Supplement to the National Geographic magazine, Washington, D.C., October, 1905." "Reprint." Includes notes and profile of canal.
The Ohio State University Libraries believes this object is in the Public Domain, users are responsible for making a final determination of copyright status before reproducing. http://rightsstatements.org/vocab/NoC-US/1.0/